Operation CHARM: Car repair manuals for everyone.

Test - Section 32



Preliminary work: Pneumatic System Equipment (PSE) Control Module
PSE control module voltage supply PSE ETP test steps 1.0. 2.0
PSE Control Module Test PSE


Data (mbar)
Test procedure
Allowable system leakage of 300 mbar vacuum in 1 minute. Permissible deviation <=30 mbar
Allowable leakage of actuators with line at 300 mbar vacuum in 1 minute. Permissible deviation <=25 mbar

Vacuum distribution block used with gasoline models only

Special Tools:






A. Entire System

Preparation For Test:
1. Provide access to PSE control module (A37), disconnect white RHR pneumatic line with socket from PSE control module.
2. Connect tester to disconnected socket using connector 202 805 03 44.

Important: If an actuator does not operate correctly and no leakage is found, check the respective lines for kinks or blockages.

Parts Required for Test:
1 Connector 202 805 03 44
2 Rubber hose, 50 mm long 007 997 61 82
1 Pneumatic line, 1 m long 000 158 14 35

NOTE: The connections on the PSE control module-and pneumatic multiple connector are marked with their German acronyms. In other words:
ZV (German) = CL (English),
SRU (German) = MVA (English),
OSL (German) = OSB (English).

Test Step 1.0:






B. Actuators

Preparation For Test:
1. Remove RHR actuators.
2. Connect tester to pneumatic connection of actuator.

Parts Required for Test:
2 Rubber hose, 50 mm long 007 997 61 82
1 Pneumatic line, 1 m long 000 158 14 35
1 Socket 202 800 02 53

Test Step 2.0:






C. Lines

Preparation For Test:
1. Connect tester to one end of pneumatic line and plug other end with cap, part no. 124 805 02 44.

Parts Required for Test:
1 Connector 202 805 03 44
3 Cap 124 805 02 44
1 Connector, 50 mm long 007 997 61 82

Test Step 3,0: